8373937381 has 2 divisors, whose sum is σ = 8373937382. Its totient is φ = 8373937380.

The previous prime is 8373937361. The next prime is 8373937441. The reversal of 8373937381 is 1837393738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8352314881 + 21622500 = 91391^2 + 4650^2 .

It is a cyclic number.

It is not a de Polignac number, because 8373937381 - 2⁹ = 8373936869 is a prime.

It is a super-2 number, since 2×8373937381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8373937361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4186968690 + 4186968691.

It is an arithmetic number, because the mean of its divisors is an integer number (4186968691).

Almost surely, 2^8373937381 is an apocalyptic number.

It is an amenable number.

8373937381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8373937381 is an equidigital number, since it uses as much as digits as its factorization.

8373937381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The square root of 8373937381 is about 91509.2201966556. The cubic root of 8373937381 is about 2030.6881584671.

The spelling of 8373937381 in words is "eight billion, three hundred seventy-three million, nine hundred thirty-seven thousand, three hundred eighty-one".